Mona Lisa is one of the best-known faces on the planet. But would you recognize an image of Leonardo da Vinci? Dutch Illustrator Siegfried Woldhek used some thoughtful image-analysis techniques to find what he believes is the true face of Leonardo. He was invited to talk about that at TED in February 2008 (video here).

For TEDxAmsterdam, Woldhek shares his breakthrough in a video interview.

• Prof. dr. Robbert Dijkgraaf
• Ambition: TEDx should yield parliamentary questions, says Media Strategist
• “How to transform inspiration into action”
• Mission: Spark & Inspire, says TEDxAmsterdam founder
• TED2010: Reports on day 2
• VIDEO: Interview with Kevin Kelly
• VIDEO: Kevin Kelly on what technology wants
• The TEDxAmsterdam book – Breakthrough
• Interview Gary Carter (COO Fremantle Media)
• Let’s try it, do not be afraid (Oscar Kneppers)